Roller-mill.



PATENTED MAY 26, 1908.

E. BROWN.

'ROLLER MILL. APPLIOATION FILED MAY 2o, 1907.

3 SHEETS-SHEET 1.

PATENTED MAY 26, 1908.

E. BROWN. ROLLER MILL.

APPLICATION FILED MAY zo, 1907.

3 SHEETS-SHEET 2.

PATBNTBD MAY 26, 1908.

' E. BROWN.

ROLLER MILL. APPLICATION IILBD MAY 2o, 1907.

3 SHEETS-SHEET 3. v

lu/menton UNITED STATES PATENT OFFICE.

EUGENE BROWN, OF COLFAX, WASIIINGTON, ASSIGNOR OF ONE-SIXTH TO GEORGE A. CHAP- MAN AND ONE-SIXTH TO CHARLES E. SCRIBER, OF COLFAX, WASHINGTON, AND ONE- SIXTH TO WILBURS. YEARSLEY, OF SPOKANE, WASHINGTON.

ROLLER-MILL.

Specification of Letters Patent.

Application filed May 20, 1907.

Patented May 26, 1908.

serial No. 374,675.

T 0 all whom 'it may concern:

Be it known that I, EUGENE BROWN, citizen of the United States, residing at ColfaX, county-of Whitman, and State of Washington, have invented certain new and useful Improvements in Roller-Mills, of,

which the following is a specification, reference being had therein to the accompanying drawing.

This invention relates to a roller mill, and particularly to a construction embodying a ed and roller cooperating therewith to roll the grain instead of grinding the same.

The invention has for an obj ect to provide a novel and improved construction of the roller and bed whereby a crushing action of the grain is secured in the movement of one of the parts upon the other and a grinding avoided so that the grain is left in fiat pieces having all of its parts together.

A further object of the invention is to provide an improved construction and arrangement of parts to remove the grain from the bed and deliver it to a trough from which it may be discharged at any desired point.

Other and further objects and advantages of the invention will be hereinafter set forth and the novel features thereof defined by the ap ended claims.

In t e drawing z-Figure 1 is an elevation showing the invention; Fig. 2 is a horizontal section on the line 2-2, Fig. 1; Fig. 3 is a detail horizontal section of one of the rolls with the casing removed therefrom ;V Fig. 4 is a vertical section of the arts shown in Fig. 3, and Fig. 5 is a detai perspective of the scraper and brush mounted upon theshaft of the crushing roller.

Like numerals refer to like parts in the several views of the drawing.

The numeral 1 designates the base of the machine which may be of any desired size or construction upon which the bearing standards 2 are mounted, these being suificient in number to accommodate the number of crushing rolls 3 used in the mill. At the lower portion of these standards a shaft 4 is pivotally mounted and carries supporting wheels 5 upon which the body of the annular bed 6 is carried. These wheels 5 permit the free rotation of the bed in its travel. This travel is accomplished by mounting upon one or more of the shafts 4 a driving gear 7 which meshes with co erating teeth 8 upon the under face of the ed, and the shaft is driven from any desired power by means of pulley 9 upon the outer end thereof. The bed is retained against lateral play or movement by means of a bearing roll 10 mounted in the standard opposite the periphery of the bed upon the stud 11 provided for that purpose.

The outer periphery of the bed 6 is provided with the vertical ange 12 to retain the grain thereon, and the surface of the bed is substantially horizontal7 as shown at 13,

while disposed at the inner periphery of the i bed and supported from the standards 2 is a delivery trough 14 into which the crushed grain is scraped as hereinafter described. Mounted upon the traveling bed and disposed within the trough is a collecting plate 15 which carries the grain in the trough to the proper point for delivery. The roll 3 is preferably tapered-from its inner edge outwardly, as shown in Fig. 4, and the shaft 16 of this roll is inclined diagonally to the bed so as to present the crushing surface of the roll in proper position to prevent any differential movement between these parts which would result in a grinding action, and to perform a crushing of the grain by the movement of the bed and the imparted movement of the roll. The roll 3 is supported under tension in contact with the bed by means of the tension springs 17 extending from the bearing blocks 18 to the cross piece 19 at the top of the standards at which point a proper tension screw 20 is mounted to adjust these springs. The bearing blocks 18 are each provided with curved surfaces disposed at the proper angle to t the inclination of the shaft 16.

The scraper 21 is supported from the shaft 16 of the Yroll and at an inclination to the longitudinal aXis thereof by means of the arms 22 provided with collars 23 to embrace the shaft 16. Mounted between these arms is a brush 24 adapted to engage the face of the roll '3 and remove adhering grain therefrom. This brush is capable of adjustment toward and from the roll by means of the slots 25 in the arms and the retaining screw 26 extending through said slots into the brush block. The end of this scraper extends into the trough 14 to insure a positive delivery of the grain thereto.

The grain is fed to the bed at one side of the roller from a tank or bin 27 mounted upon supports 2S at the top of the standards, and from this bin is carried through chutes 29 to the delivery spout 30 disposed immediately adjacent to t e upper surface of the bed. These spouts are provided with any desired construction of cut off valve 31 which may be adjusted to the desired extent to determine the feed. Each of the rolls is disposed within a protecting casing 32 mounted upon the standards, in any desired manner. A guard late 33 is disposed at the inner edge of the bed and supported upon the standards so as to retain the grain within the area of the roll during the crushing action. The casing is also provided with a hinged or pivoted section 34 at the side next the cleaningbrush so as to permit access thereto when desired.

In the operation of the invention the grain is fed from the bin through the chutes on the bed immediately adjacent the crushing roll which owing to its disposition relative to the revolving bed crushes or mashes the grain into iattened condition and it is then scraped therefrom into the delivery trough. This particular arrangement of the roll revents any grinding or tearing action of t e grain by dragging it over the bed and insures a maximum amount of work for the capacity of machine em loyed. The brushand scraper eectually c ear the bed of the crushed grain and also Iclean the roll of adhering material so that it is in condition for subsequent use. The invention therefore presents a simple and economical construction of roller mill adapted to most efficiently accomplish the functions of such a device, in which each roll acts independently and the rolls may be multiplied dependent upon the area of the bed to increase the capacity of a machine.

Having described my invention and set forth its merits, what I claim and desire to secure by Letters Patent is 1. In a roller mill, an annular bed disposed in a horizontal plane, means for rotatingthe same, an inwardly tapered roller supported in contact with said bed, a feeding device disposed at one side of said roller, a delivery trough at the inner edge of said bed, and a scraper supported to traverse said bed and` extend over said trough.

2. In a roller mill, an annular bed, a coperating roller mounted thereon, a fixed trough supported at the inner edge of said bed, a scraper extended across the bed and over said trough to deliver thereto, and a collecting device carried by the bed to traverse said trough.

3. -In a roller mill, an annular bed, a coperating roller mounted upon said bed, a fixed trough supported at the inner periphery of said bed, a collecting device carried by the bed and extended into said trough to traverse the same, a scraper supported from the shaft of said roller and extending over the bed and trough, and a brush carried by the scraper support intermediate the scraper and roller to contact with the crushing face of the roller. Y

4. In a roller mill, a bed having an annular crushing face disposed in a horizontal plane, an inwardly tapered roll disposed with its crushing face arallel to said bed face, a shaft for said roll disposed diagonally to the crushing face of the bed, opposite standards for supporting said shaft, a supporting wheel mounted in said standards beneath said bed, and means for discharging crushed material at the inner edge of said bed.

5. In a roller mill, standards, an annular bed mounted to rotate between said standards, a roller mounted in the standards to traverse said bed, parallel supporting arms extended from the shaft of said roller, and an inclined scraper carried by the free end of said arms adjacent to the face of said bed.

6. In a roller mill, standards, an annular bed mounted to rotate between said standards, a roller mounted in the standards to traverse said bed, parallel supporting arms extended from the shaft of said roller, an inclined scraper carried by the free end of said arms adjacent to the face of said bed, a brush and means for adjustably mounting the brush upon said arms to engage the periphery of said roller.

7. In a roller mill, a series of standards, an annular bed lmounted to pass between said standards, supporting means for said bed, rollers coperating with said bed and supported by said standards, a feed bin carried by the upper portion of said standards, chutes depending from said bin adjacent to one side of each of said rollers, a delivery trough mounted at one edge of said bed, and a scraper carried by said rollers at the opposite side from the chute to deliver into said trough.

8. A roller mill comprising a series of standards, an annular bed mounted to pass between said standards, supporting meansfor said bed, rollers coperating with said bed and supported by said standards, a feed bin carried by the upper portion of said standards, chutes depending from said bin adjacent to one side of said rollers, a delivery and with an intermediate portion opposite trough mounted at one edge of said bed interthe inner side of the roller. 10 mediate of adjaoentstandards, a scraper ear- In testimony whereof I aflix my signature K ried by said rollers to deliver into said in presence of tWo Witnesses.

5 trough, a collecting plate carried by the bed EUGENE BROWN.

to traverse said trough, and a curved guard Witnesses: y plate mounted upon one standard and eX- PAUL PAT'rIsoN, tending at each end over the delivery trough JOHN PATTIsoN. 

